Electromagnetic & eddy current testing

Magnetic NDT Techniques have wide applications. ALS can assist in using them to your advantage.

How does electromagnetic & eddy current testing work for your business?

ALS boasts a broad range of NDT techniques based on the principal of magnetism. These techniques rely on the changes that physical features such as:

Cracks

Voids

Corrosion

Weld Defects

Create in a magnetic field induced in the tested component or structure. Using various different sensing techniques, these changes in the magnetic field are revealed and our expert technical staff interpret the size and nature of the defect present.

Magnetic flux leakage (MFL)

Magnetic flux leakage techniques apply the principal of saturating a magnetic material and recording leakage of the magnetic field associated with areas of metal loss, corrosion and cracking. The technique is excellently applied to large areas where corrosion is likely to have occurred. Specialist equipment jigs are also owned by ALS that allow scanning of wire ropes, where corroded and broken internal metal strands of wire ropes can be assessed. MFL, can also be applied for inspection of ferromagnetic tube materials.